CN101089120A - Preparation of water-proop immersion article for porous mineral building material - Google Patents
Preparation of water-proop immersion article for porous mineral building material Download PDFInfo
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- CN101089120A CN101089120A CNA2006100839657A CN200610083965A CN101089120A CN 101089120 A CN101089120 A CN 101089120A CN A2006100839657 A CNA2006100839657 A CN A2006100839657A CN 200610083965 A CN200610083965 A CN 200610083965A CN 101089120 A CN101089120 A CN 101089120A
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 14
- 239000011707 mineral Substances 0.000 title claims abstract description 14
- 239000004566 building material Substances 0.000 title abstract description 6
- 238000002360 preparation method Methods 0.000 title description 25
- 238000007654 immersion Methods 0.000 title 1
- 239000000839 emulsion Substances 0.000 claims abstract description 52
- 239000000203 mixture Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 31
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 29
- 238000010276 construction Methods 0.000 claims description 28
- 125000000217 alkyl group Chemical group 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 230000008595 infiltration Effects 0.000 claims description 5
- 238000001764 infiltration Methods 0.000 claims description 5
- 230000001804 emulsifying effect Effects 0.000 claims description 3
- 150000002902 organometallic compounds Chemical class 0.000 claims description 2
- 238000006424 Flood reaction Methods 0.000 claims 1
- 239000012466 permeate Substances 0.000 claims 1
- -1 alkoxyl silane Chemical compound 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 18
- 229910000077 silane Inorganic materials 0.000 abstract description 18
- 230000035699 permeability Effects 0.000 abstract description 2
- 238000005470 impregnation Methods 0.000 abstract 1
- 150000003961 organosilicon compounds Chemical class 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 13
- 239000002893 slag Substances 0.000 description 10
- 150000001721 carbon Chemical group 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 238000007598 dipping method Methods 0.000 description 8
- 239000004816 latex Substances 0.000 description 8
- 229920000126 latex Polymers 0.000 description 8
- 230000035515 penetration Effects 0.000 description 8
- 229920001296 polysiloxane Polymers 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 4
- 125000005055 alkyl alkoxy group Chemical group 0.000 description 4
- 239000004035 construction material Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 4
- 229960003493 octyltriethoxysilane Drugs 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 150000004756 silanes Chemical class 0.000 description 2
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 description 1
- KJWMCPYEODZESQ-UHFFFAOYSA-N 4-Dodecylphenol Chemical compound CCCCCCCCCCCCC1=CC=C(O)C=C1 KJWMCPYEODZESQ-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQODPTQLXVVEJG-UHFFFAOYSA-N [O].C=C Chemical group [O].C=C BQODPTQLXVVEJG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 239000013011 aqueous formulation Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
Abstract
One kind of composition for waterproof impregnation on porous mineral building material is disclosed. The composition based on organosilicon compound containing alkoxyl group is emulsion containing alkoxyl silane in 2.5-25 wt%, alkoxyl siloxane in 2-20 wt%, emulsifier in 0.01-5 wt%, stuffing of effective specific surface area 40 sq m/g in 0.01-0.1 wt%, and water in 49.9-95.48 wt%. The composition has long storage period, high permeability, capacity of entering inside of various kinds of mineral building material and high waterproofing effect.
Description
Background of invention
The present invention relates to be used for the waterproof impregnated compositions of porous mineral material of construction, more particularly, the present invention relates to the composition based on the silicoorganic compound that contain alkoxyl group, described composition can be used for strengthening the water-repellancy of described material of construction.
For many years, organosilane or organo-siloxane have been used to flood the porous mineral material of construction, avoid the infiltration of water to protect described material of construction.Particularly importantly, activeconstituents will in depth be penetrated in the material of construction for this hydrophobicity is handled, and carries out chemical with material of construction or physical property combines.
The compound that uses lowest molecular weight helps to infiltrate through material of construction as the active organosilicon composition.Can use evaporable organic solvent after handling material of construction simultaneously, with further raising depth of penetration.By using organoalkoxysilane and/or organic alkoxy siloxanes to obtain hyperergy, described organoalkoxysilane and/or organic alkoxy siloxanes can condensations under the influence of moisture, and react as silicoorganic compound and material of construction.Simultaneously, the alcohol corresponding with alkoxyl group is separated and evaporate in the air.
German Patent 3,312,911 disclose a kind of such preparation, and described preparation comprises the organopolysiloxane of following general formula
Wherein,
R
1Be alkyl or aryl,
R
2Be alkyl with 1 to 4 carbon atom,
A=0.8 to 1.5,
b≤2。
Said preparation is characterised in that composition is made up of following ingredients:
A) mixture of the organic alkoxy siloxanes of the aforementioned structural formula of 1 to 20% weight, this mixture by 25 to 75% weight, the b value is 0.1 to 0.5 siloxanes, and 75 to 25% weight, the b value is that 0.8 to 2.0 siloxanes is formed, wherein a+b is less than or equal to 3
B) the not miscible solvent of 80% to 99% weight with water, and
C) selectivity is used, known condensation catalyst.
The inner characteristic of said preparation is, be not to use its molecular weight distribution to have only a peaked a kind of organic alkoxy siloxanes to flood substantially, and being to use the mixture of multiple organic alkoxy siloxanes to flood, described mixture is characterised in that by different condensation degrees to be formed.By these methods, guaranteed high depth of penetration and relevant high validity-particularly on alkaline material of construction, and good, visible globule effect (waterbeading effect) visually.
German Patent 3,312,911 disclosed preparations have proved to have practical value.Basically, can only improve with regard to the accessible in actual use depth of penetration of these preparations.This depth of penetration mainly is subjected to the influence of three factors, that is: employed solvent, the porosity of material of construction, and the careful degree (care) of using said preparation.Therefore, the improvement of dipping preparation must be by measuring permeability behavior (penetration behavior) particularly.
As the result that Environmental awareness improves, people recognize that more and more the use of organic solvent is alarming.Therefore, be devoted to develop similar formulations especially based on waterborne compositions.
Further development has obtained German Patent 3,627,060 method.This patent relates to the method with the aqueous solution dipping mineral construction material, the particularly masonry of silanol and/or silica alkanol, and described silanol and/or silica alkanol use the on-the-spot generation that is hydrolyzed by organoalkoxysilane and/or oxyalkylsiloxane at it.The compound of selecting following general formula is as described organoalkoxysilane and/or oxyalkylsiloxane
Wherein,
R
1Be alkyl with 1 to 8 carbon atom, at least 90% R in mean molecule
1Group is the alkyl with 1 to 4 carbon atom,
R
2Be methyl or ethyl,
A is 0 to 1.5,
B is 1.0 to 4.0, and
A+b is 2.0 to 4.0.
These compounds are hydrolyzed continuously with the amount corresponding to its consumption.After mixing, reactant in 3 to 30 minutes the solution that obtains is applied on the mineral construction material.
By this method, obtained the height infiltration of aqueous formulation in the mineral construction material.This infiltration is equivalent to use the infiltration that preparation obtained that contains organic solvent.
Yet,,, desired in 060 as German Patent 3,627 because the unstable of these solution must make it generate in the use location.
A kind ofly be used for making stupalith to have hydrophobic aqueous silane emulsion being disclosed in disclosed european patent application 0234024.This emulsion mainly is made up of following ingredients:
A) hydrolyzable silane of 1 to 40% weight, described silane have and are up to about 500 molecular weight and general formula R
nSi (R ')
4-n, wherein R ' is optional halogenated, alkyl with 1 to 20 carbon atom, R ' is alkoxyl group, halogen, amino or the carboxyl with 1 to 3 carbon atom, and n is 1 or 2, and the perhaps oligopolymer of these silane, and
B) in silane 0.5 to 50% weight, the HLB value is at 4 to 15 emulsifying agent, and
C) water.
Octyltri-ethoxysilane is appointed as particularly preferred silane.
In fact, the R group has the stability that has raising more than the emulsion of this silane of 6 carbon atoms, and this is because the hydrolysis rate of these reactive silanes reduces.Yet disadvantageously, the hydrolysis of these silane in material of construction also will inevitably correspondingly slow down, and must carry out catalysis with suitable manner.This for example is in the cards in the fresh concrete in some material of construction, because the alkalescence of these material of construction is high.Yet this point for example but can't realize in sintering slag (burned clinker) or the multiple natural rock at neutrality or weakly alkaline material of construction.If there is not so a kind of catalyzer, silane can't be affixed on the surface of material of construction.Silane may be removed from the surface volatilization or by machinery.This causes the depletion of lip-deep silane, and therefore reduces hydrophobicity.As a result, globule effect is very weak or do not exist fully.The water receptivity height of the upper layer of depletion, therefore, this one deck that is exposed to weathering and machinery invasion and attack especially especially but can not be adequately protected.Therefore, these preparations only can be used for some material of construction.
Summary of the invention
An object of the present invention is to provide a kind of improved waterborne compositions that is used for the anti-water retting of porous mineral material of construction.
Another object of the present invention provides on all useful building material surfaces, comprise alkalescence and the neutral building material surface on, have the waterborne compositions of high waterproof action.
A further object of the present invention provides the water-repellancy that substantially improves all material of construction, and has the composition of long shelf lives.
These purposes of the present invention and other purpose reach by following invention.
Beat allly be, found that so a kind of preparation has desired character, according to the present invention, described preparation is the emulsion that contains following component:
2.5 a kind of organoalkoxysilane to the following formula of 25% weight
R
1-Si(OR
2)
3 I
R wherein
1Be alkyl with 3 to 12 carbon atoms,
R
2Be methyl or ethyl;
A kind of oxyalkylsiloxane of the following formula of 2 to 20% weight
R wherein
3Be alkyl with 1 to 6 carbon atom,
A is 0.8 to 1.2,
B is 0.2 to 1.2;
0.01 to a kind of emulsifying agent of 5% weight, 0.01 to 0.1% weight, effective surface area is at least 40m
2The weighting agent of/g, and the water of 49.9 to 95.48% weight.
The R of the organoalkoxysilane of formula I
1Group is the alkyl with 3 to 12 carbon atoms.Described alkyl can be straight chain or side chain.The example of described alkyl has hexyl, octyl group, nonyl, different nonyl, decyl and dodecyl.The linear alkyl that preferably has 3 to 8 carbon atoms especially preferably has the linear alkyl of 6 to 8 carbon atoms.
R among formula I and the II
2Group is methyl or ethyl.For physiology reason, R
2Ethyl preferably, this is because hydrolysis discharges in this case is ethanol.
The R of the oxyalkylsiloxane of formula II
3Group is the alkyl with 1 to 6 carbon atom.Equally, described alkyl can be linear or side chain.Suitable R
3Group is methyl, ethyl, propyl group, sec.-propyl, butyl, isobutyl-and hexyl.The linear alkyl that especially preferably has 1 to 4 carbon atom.
Subscript a represents the mean value that is connected in the alkyl number on the Siliciumatom in the formula II molecule, and a takes from 0.8 to 1.2 value, and preferred 1.0.
Subscript b represents the mean value of the alkoxyl group number that is connected in the molecule on each Siliciumatom.Following table b takes from 0.2 to 1.2 value.A and b sum should be in 1.2 to 2.4 scopes.
Usually nonionic emulsifying agent is used as emulsifying agent.These emulsifying agents are alkylene oxide-optimization ethylene oxides, and with the adduct of the compound with acidic hydrogen, described compound with acidic hydrogen comprises for example preferred Fatty Alcohol(C12-C14 and C12-C18) or alkylphenol, for example octyl phenol, nonyl phenol or 4-dodecylphenol.The content of oxygen ethylene unit should make the HLB value of emulsifying agent drop between 6 and 14, particularly drops between 8 and 12.
Also can use ionic emulsifying agent, for example sulfonated alkane.
Composition of the present invention also can additionally contain catalyzer.Suggestion added it should used described preparation when using catalyzer before at once.
Usually with the emulsion of organometallic compound, for example dibutyl tin laurate is used as catalyzer.The use of catalyzer is optional.Yet, when pending be neutral material of construction, sintering slag for example, and will telling on fully at short notice for example will use catalyzer always suitable when only effect being tested after 1 to 2 day.
Preparation of the present invention preferably gets by latex A that will contain organoalkoxysilane and the emulsifying agent B that contains oxyalkylsiloxane are mixed.
Latex A and B can be by with organoalkoxysilane or oxyalkylsiloxane and emulsifier mix, and the water that adds aequum makes, and if desired, can prepare at elevated temperatures.Also can make like this: emulsifying agent is scattered on a small quantity, for example in the water of 5 to 10% weight, silane or siloxanes is stirred in this mixture, and dilute prepared emulsion slurry (stockemulsion) with remainder water.Using emulsifying device, for example with the emulsifying device of rotor/stator principle work, perhaps use so-called colloidal mill, also may be helpful, and the use of these equipment makes the preparation with short grained especially emulsion become possibility.
Also known from prior art, can further improve the globule effect of said preparation by adding suitable weighting agent.These weighting agents accumulate in the surface of material of construction, and help the hydrophobization on surface.Therefore, composition of the present invention preferably also contain 0.01 to 2% weight, more preferably 0.01 to 0.1% weight, most preferably (in the weight of composition), the effective surface area of 0.01 to 0.09% weight are at least 40m
2The weighting agent of/g.Usually, and also within the scope of the present invention be preferably to use water drain silica.By for example carrying out flame hydrolysis with silicon dioxide drainageization, obtain water drain silica with silicoorganic compound, particularly silane.
If use latex A dipping porous construction material separately, the shortcoming of european patent application 0234024 will be conspicuous, because the organoalkoxysilane of formula I will not react on neutral base.
If use emulsion B separately, penetrating power is with deficiency; Building surface with pore will show anti-water effect deficiency.
Yet, beat allly be to have found that preparation of the present invention has the long shelf lives, and shown high waterproof action comprising on all porous mineral building material surfaces of neutral base.Because high perviousness, preparation of the present invention all is effective in the big relatively degree of depth.Said preparation has also generated the outside surface with high hydrophobic effect.
About the following example of formulation preparation of the present invention and composition further illustrates at present at implementing the best mode that the present invention considered, but can not by any way these illustrative embodiment be interpreted as limitation of the present invention.Performance when also the performance of composition of the present invention and latex A and emulsion B being used has separately separately been carried out contrast and has been showed.
Embodiment 1
The preparation of emulsion
To contain whole emulsifying agents (mixture of secondary sulfonated alkane (secondary alkanesulfonate); CAS Reg.No.68608-26-4) water (50kg) adds in the mixing vessel, and stirs adding 50kg alkylalkoxy silane/alkyl alkoxy polysiloxane (activeconstituents).Use interval type (gap-type) homogenizer with 400/20bar homogenizing mixture four times then.By cooling temperature is remained on 10 to 20 ℃.
Before the use, emulsion is diluted with water to required active component content.
Given emulsifier content is always relevant with activeconstituents.
Latex A
Activeconstituents: octyltri-ethoxysilane
Emulsifying agent: 5% weight
Emulsion B
Activeconstituents: the methyl ethoxy polysiloxane of following formula
Emulsifying agent: 5% weight
Emulsion C
By with latex A and B mixed emulsion C.The ratio of latex A and emulsion B is 1: 1.
The performance test of composition
The test result of composition is shown in Table 1.
Table 1
| Emulsion | Emulsifying agent (% weight) | Activeconstituents (% weight) | Globule effect | Water absorbs (% weight) | Impregnating depth (mm) |
| A B C is untreated | 5 5 5 | 10 10 10 | 7 5 4 7 | 13.2 12.6 7.8 15.5 | 10 3 10 - |
Matrix: slag
Embodiment 1 shows that the resulting test result of preparation (emulsion C) that is made by alkylalkoxy silane and alkyl alkoxy polysiloxane of the present invention is significantly better than the resulting test result of emulsion (emulsion B) of non-alkyl alkoxy polysiloxane of the present invention.
Described test is carried out in the following manner.
Make sample (slag: 12 * 12 * 6cm; The cubes of lime-sand brick: length of side 6cm) under the standard climate condition (20 ℃; 65%R.H.) adapted to for 1 week after, sample was immersed in the dipping solution 60 seconds, and dry under identical standard climate condition.By convention, 1 all test performances after dipping.
Determine globule effect in the following manner.
With transfer pipet tap water (1ml) is placed on the horizontal checkout surface carefully.After 10 minutes, will still be present in lip-deep water and shake off, and with the naked eye assess the contact area of water droplet, and grade according to following standard.
The 1=contact area does not have wetting
2=contact area 50% wetted
3=contact area 100% wetted
4=water is partially absorbed; The slight deepening of contact area
The 5=water of 50g at least is absorbed; Contact area is darker
The 6=water droplet is absorbed fully; Contact area is darker
The 7=water droplet is absorbed fully being less than in time of 5 minutes
Measuring water in the following manner absorbs.
Sample was deposited under the 5cm head 24 hours.Then sample is taken out from water, weigh after the water that the outside is adhered to filter paper is removed.Calculating water with following formula absorbs:
Water absorbs (% weight)=(a-b) * 100/b
Weight after the a=sample is deposited in the water
Weight before the b=sample is deposited in the water
Measure depth of penetration (impregnating depth) in the following manner.
Sample is cut, and water is wetting with section.Measure bright edge (bright edge).
Embodiment 2
Methyl ethoxy polysiloxane with octyltri-ethoxysilane and following formula together prepares emulsion
Activeconstituents is together mixed and emulsification, as described in embodiment 1.
Emulsion D to F
The weight ratio of silane and siloxanes is 1: 1.
The emulsifier content of emulsion differ from one another (table 2).
The test of composition
Test result is shown in Table 2.
Table 2
| Emulsion | Emulsifying agent (% weight) | Activeconstituents (% weight) | Globule effect | Water absorbs (% weight) | Impregnating depth (mm) |
| D E F handles | 5 0.45 0.1 | 10 10 10 | 4 3 2 7 | 7.2 2.0 0.6 15.5 | 10 10 10 - |
Matrix: slag
Even also can use fully after emulsion D and E at room temperature store 12 months.On the other hand, emulsion F has only 6 months shelf lives.
Embodiment 2 shows, together prepares the result that relevant globule effect that emulsion (emulsion D) obtains and water absorb with alkylalkoxy silane and alkyl alkoxy polysiloxane, and prepares emulsion respectively and in that to use the result who obtains preceding mixing the (emulsion C) suitable.In addition, this embodiment clearly illustrates that, can improve validity by reducing emulsifier content.Even under lower emulsifier concentration situation, the shelf lives also is enough.
Embodiment 3
Press the emulsion of embodiment 2 preparation octyltri-ethoxysilane and methyl ethoxy polysiloxane.Yet this emulsion (emulsion G) contains the commercially available water drain silica of the routine of 0.09% weight, and described % weight is in activeconstituents.The application properties of emulsion G and the emulsion F of embodiment 2 are compared.
The performance test of composition
The test result of composition is shown in Table 3.
Table 3
| Emulsion | Emulsifying agent (% weight) | Activeconstituents (% weight) | Globule effect | Water absorbs (% weight) | Impregnating depth (mm) |
| G F is untreated | 0.1 0.1 | 10 10 | 1 2 7 | 0.7 0.6 15.5 | 10 10 - |
Matrix: slag
Embodiment 3 clearly illustrates that, can improve globule effect by adding water drain silica, does not influence the depth of penetration of water absorption and soaker simultaneously substantially.
Embodiment 4
Add the dibutyl tin laurate emulsion of 1% weight in the emulsifying agent E of embodiment 2, the concentration of described dibutyl tin laurate emulsion is 10% weight.Therefore, the catalyzer total content among instant (ready-for-use) the emulsion H is 0.1% weight.The use properties of emulsion H and the emulsion E of embodiment 2 are compared.
The performance test of composition
Carry out the test of composition after 24 hours.The results are shown in the table 4.
Table 4
| Emulsion | Emulsifying agent (% weight) | Activeconstituents (% weight) | Globule effect | Water absorbs (% weight) | Impregnating depth (mm) |
| Matrix: slag (neutral material of construction) | |||||
| H E is untreated | 0.45 0.45 | 10 10 | 1-2 3-4 7 | 2.9 5.8 15.5 | 10 10 - |
| Matrix: untreated lime-sand brick (alkaline material of construction) | |||||
| H E is untreated | 0.45 0.45 | 10 10 | 2 2-3 7 | 1.8 1.9 12.8 | 5 5 - |
Embodiment 4 shows, can for example obtain better effect on the slag at neutral material of construction, under the situation of particularly testing after using the short period of time by adding catalyzer.
Embodiment 5
Emulsion K is made by the emulsion E of embodiment 2.The test of using of two kinds of emulsions is compared.
The performance test of composition
Test result is shown in Table 5.
Table 5
| Emulsion | Emulsifying agent (% weight) | Activeconstituents (% weight) | Globule effect | Water absorbs (% weight) | Impregnating depth (mm) |
| K E is untreated | 0.45 0.45 | 5 10 | 3 2-3 7 | 2.5 2.1 15.5 | 10 10 - |
Matrix: slag
Present embodiment shows, even the content of activeconstituents is reduced to only 5% weight, also can obtain good dipping effect.Depth of penetration is almost uninfluenced.
Summary sheet
| The embodiment numbering | The emulsion type | Manner of formulation | Emulsifying agent (% weight) | Activeconstituents (% weight) | SiO 2(% weight) | Dibutyl tin laurate (% weight) | Globule effect | Water absorbs (% weight) | Impregnating depth (% weight) |
| 1 1 1 1 2 2 2 2 3 3 3 4* 4* 4* 4** 4** 4** 5 5 5 | A B C - D E F - G F - H E - H E - K E - | - - 2 - 1 1 1 - 1 1 - 1 1 - 1 1 - 1 1 - | 5 5 5 - 5 0.45 0.1 - 0.1 0.1 - 0.45 0.45 - 0.45 0.45 - 0.45 0.45 - | 10 10 10 - 10 10 10 - 10 10 - 10 10 - 10 10 - 5 10 - | - - - - - - - - 0.09 - - - - - - - - - - - | - - - - - - - - - - - 0.1 - - 0.1 - - - - - | 7 5 4 7 4 3 2 7 1 2 7 1-2 3-4 7 2 2-3 7 3 2-3 7 | 13.2 12.6 7.8 15.5 7.2 2.0 0.6 15.5 0.7 0.6 15.5 2.9 5.8 15.5 1.8 1.9 12.8 2.5 2.1 15.5 | 10 3 10 - 10 10 10 - 10 10 - 10 10 5 - 5 - 10 10 - |
* in the test (shortening set time) after 24 hours of dipping on the slag
* is in the test (shortening set time) after 24 hours of dipping on the lime-sand brick
Manner of formulation
The together emulsification of each component of 1=
2=mixes latex A and B
Claims (11)
1. one kind is used to flood the porous mineral material of construction and avoids the composition of water infiltration to protect described material, and described composition contains the emulsion that following component forms:
2.5 a kind of organoalkoxysilane to the following formula of 25% weight
R
1-Si(OR
2)
3，
R wherein
1Be a alkyl with 3 to 12 carbon atoms,
R
2Be a methyl or ethyl,
A kind of oxyalkylsiloxane of the following formula of 2 to 20% weight
R wherein
3It is a alkyl with 1 to 6 carbon atom
A is 0.8 to 1.2,
B is 0.2 to 1.2,
0.01 to a kind of emulsifying agent of 5% weight, and the water of 49.9 to 95.48% weight.
2. the composition of claim 1, wherein R
2Group is an ethyl.
3. the composition of claim 1, wherein the consumption of emulsifying agent is 0.01 to 0.5% weight.
4. the composition of claim 1, wherein emulsifying agent makes organoalkoxysilane and alkoxyl group silica base and emulsifying water effectively.
5. the composition of claim 1, wherein emulsifying agent is a kind of nonionic emulsifying agent.
6. the composition of claim 1, wherein a and b sum are in 1.2 to 2.4 scopes.
7. the composition of claim 1 wherein also contains a kind of catalyzer, and described catalyzer is the emulsion of an organometallic compound.
8. the composition of claim 1, described composition is to mix with the emulsion that contains oxyalkylsiloxane by the emulsion that will contain organoalkoxysilane to obtain.
9. protect the porous mineral material of construction to avoid the method that water permeates for one kind, described method comprises floods described porous mineral material of construction with a kind of composition, and described composition contains the emulsion that following component forms:
2.5 a organoalkoxysilane to the following formula of 25% weight
R
1-Si(OR
2)
3，
R wherein
1Be a alkyl with 3 to 12 carbon atoms,
R
2Be a methyl or ethyl,
An oxyalkylsiloxane of the following formula of 2 to 20% weight
R wherein
3It is a alkyl with 1 to 6 carbon atom
A is 0.8 to 1.2,
B is 0.2 to 1.2,
0.01 to a kind of emulsifying agent of 5% weight, and the water of 49.9 to 95.48% weight.
10. the composition of claim 1, also contain 0.01 to 0.1% weight, effective surface area is at least 40m
2The weighting agent of/g.
11. the composition of claim 10, wherein this weighting agent is a water drain silica.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100839657A CN101089120A (en) | 2006-06-16 | 2006-06-16 | Preparation of water-proop immersion article for porous mineral building material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100839657A CN101089120A (en) | 2006-06-16 | 2006-06-16 | Preparation of water-proop immersion article for porous mineral building material |
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| Publication Number | Publication Date |
|---|---|
| CN101089120A true CN101089120A (en) | 2007-12-19 |
Family
ID=38942621
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627424A (en) * | 2012-03-23 | 2012-08-08 | 上海市建筑科学研究院(集团)有限公司 | Hydrophobic treatment method of inorganic porous thermal insulating material |
| CN101746988B (en) * | 2009-12-17 | 2012-10-03 | 张家港市国泰华荣化工新材料有限公司 | Special silane paste protective agent for concrete and preparation method thereof |
| CN104529528A (en) * | 2015-01-22 | 2015-04-22 | 重庆锦弘建设工程有限公司 | Silane impregnant |
-
2006
- 2006-06-16 CN CNA2006100839657A patent/CN101089120A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746988B (en) * | 2009-12-17 | 2012-10-03 | 张家港市国泰华荣化工新材料有限公司 | Special silane paste protective agent for concrete and preparation method thereof |
| CN102627424A (en) * | 2012-03-23 | 2012-08-08 | 上海市建筑科学研究院(集团)有限公司 | Hydrophobic treatment method of inorganic porous thermal insulating material |
| CN102627424B (en) * | 2012-03-23 | 2013-11-06 | 上海市建筑科学研究院(集团)有限公司 | Hydrophobic treatment method of inorganic porous thermal insulating material |
| CN104529528A (en) * | 2015-01-22 | 2015-04-22 | 重庆锦弘建设工程有限公司 | Silane impregnant |
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